The Sky at Night

Orion the Hunter

Orion the Hunter Learning Leaflet

Can you recognize Orion the Hunter?

Three bright stars in a row make up Orion's belt, within a rectangle of four bright stars representing his shoulders and feet. Since Orion's belt lies nearly upon the celestial equator, Orion is visible from every inhabited part of the globe. This OER introduces the astronomy and skylore of the constellation Orion the Hunter.


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The Planisphere: An Introduction

A. Klippel, Starry Heavens

The planisphere is a handy map of the night sky that works every night every season of the year. Learn more about how to use a planisphere in this learning leaflet.


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Urania's Mirror: Constellation Cards

Urania's Mirror Learning Leaflet

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure.

OERs in this set:  


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Zodiacal Motion: An Introduction

Johann Bayer, Uranometria

Against the background of the daily diurnal motion, the outer planets have an additional slow motion called their Zodiacal (or "direct") motion. Stars are fixed in relative position, but planets move slowly from west to east. Learn more about zodiacal motion in this learning leaflet.


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Urania's Mirror: card set (full page)

Urania's Mirror Card Set

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure. This is the full-page set.

OERs in this set:  


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Urania's Mirror: Constellation card set (half-page)

Urania's Mirror Card Set

What are your favorite constellations?

Urania's Mirror was a set of constellation cards designed to aid in the teaching and learning of constellations. This set includes 32 cards, each focused upon one or a few constellations. Holes punched in the positions of bright stars allow one to hold any card up to a light and compare the star pattern with the constellation figure. This is the half-page set.

OERs in this set:  


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Coma Berenices Learning Leaflet

Coma Berenices Learning Leaflet

Coma Berenices is the only one of the modern 88 official constellations named after a historical figure. It represents the hair of Berenice, Queen of Egypt (267 221 BCE), who reigned with Ptolemy III Euergetes. Learn more about this in this learning leaflet.


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"Constellation Coloring Book" adapted from Johann Bode, "Uranographia"

Bode Coloring Book

Johann Bode, director of the Observatory of the Berlin Academy of Sciences, produced the last of the four major celestial atlases in which artful depictions of constellation figures appear alongside the most up-to-date scientific data. 20 large copperplate engravings plot more than 17,000 stars, far more than any previous atlas. Bode included new stars for the southern hemisphere, along with constellations recently invented by Hevelius and Lacaille. Bode depicted more than 100 constellations, compared with 88 officially recognized today. Some which appeared in this atlas for the first time, but are not officially recognized today, include the Cat, the Printing Press, the Montgolfier Balloon, and the Electric Generator.

This coloring book, produced by the OU Academy of the Lynx, was made from images in Bode's book.  

OERs in this set:  Bode Learning Leaflet | Constellation ActivitiesBode Coloring Pages | Bode Original plates


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Bode's Star Atlas: Uranographia, 1801

Bode's Star Atlas LL

What are your favorite constellations? 

This beautiful star atlas fused artistic beauty and scientific precision, the last of the four major star atlases in which artful depictions of constellation figures appear alongside the most up to date scientific information. Bode was director of the Observatory of the Berlin Academy of Sciences.

OERs in this set:  Bode Learning Leaflet | Constellation ActivitiesBode Coloring Pages | Bode Original plates


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